4 ms·
That's why the proposal hinges on using neutrinos with particular energy (6.3PeV, 6.3 * 10^15eV). The article mentions those have two properties: * quite likel
by dexen 16y ago
That's why the proposal hinges on using neutrinos with particular energy (6.3PeV, 6.3 * 10^15eV). The article mentions those have two properties:
* quite likely to release a W- boson (itself easily detectable) when interacting with matter in detector, and
* not being emited in any sizeable numbers from natural sources -- thus implicating artificial source.
- deleted 16y ago[deleted]
- retube 16y ago> Quite likely to release a W- boson. Possibly, if it interacts at all. This is still a vanishingly small probability, even if high compared to other neutrino energies. 10^15eV is an astonishingly high energy. About 1,000 times as energetic as a proton in the LHC (which benefits from a gigantic rest-mass). To generate enough of them to be detected is seriously the realms of ultra-science fiction. Along the lines of turning Jupiter into a star or building a Dyson Sphere.
- ceejayoz 16y ago> Along the lines of turning Jupiter into a star or building a Dyson Sphere. Neither of which is likely to be all that hard for a civilization a million years further in development than we are.
- neutronicus 16y agoThat's assuming ... quite a bit.
- mchouza 16y agoApparently, a significant background of 10^19 eV neutrinos is expected: http://web.phys.ntnu.no/~mika/taup.pdf http://web.phys.ntnu.no/~mika/taup.pdf